Disconnect - Carrier COBRA 48/50HJ004-014 Installation And Service

Table 1H — Electrical Data (COBRA™ Energy Recovery 50HJ008-014 Units with 62AQ300) (cont)
NOMINAL IFM
UNIT
V-PH-Hz TYPE
STD
STD
208/230-3-60
HIGH STATIC
HIGH STATIC
50HJ012
STD
STD
460-3-60
HIGH STATIC
HIGH STATIC
STD
STD
50HJ014 208/230-3-60
STD
STD
LEGEND
FLA — Full Load Amps
HACR — Heating, Air Conditioning and Refrigeration
IFM — Indoor (Evaporator) Fan Motor
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
— National Electrical Code
NEC
UL — Underwriters' Laboratories
*Used to determine minimum disconnect per NEC.
†Single point box CRSINGLE017A00 is part of base unit.
NOTES:
1. In compliance with NEC requirements for multimotor and combination load equipment
(refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall
be fuse or HACR breaker. UL, Canada units may be fuse or circuit breaker.
2. Unbalanced 3-Phase Supply Voltage
Never operate a motor where a phase imbalance in supply voltage is greater than 2%.
Use the following formula to determine the percent of voltage imbalance.
max voltage deviation from average voltage
= 100 x
average voltage
HEATER
CONV 62AQ
CRHEATER
OUTLET FLA
---A00
NONE
017 21.7/ 25.0
010 33.4/ 38.5
NO 29.8
012 66.7/ 77.0
012+017 88.4/102.0
010+012 104.2/120.3
NONE
017 21.7/ 25.0
010 33.4/ 38.5
YES 29.8
012 66.7/ 77.0
012+017 88.4/102.0
010+012 104.2/120.3
NONE
017 21.7/ 25.0
010 33.4/3 8.5
NO 29.8
012 66.7/ 77.0
012+017 88.4/102.0
010+012 104.2/120.3
NONE
017 21.7/ 25.0
010 33.4/ 38.5
YES 29.8
012 66.7/ 77.0
012+017 88.4/102.0
010+012 104.2/120.3
NONE
016
013
NO 15.8
014
014+016
013+015
NONE
016
013
YES 15.8
014
014+016
013+015
NONE
016
013
NO 15.8
014
014+016
013+015
NONE
016
013
YES 15.8
014
014+016
013+015
NONE
017 21.7/ 25.0
010 33.4/ 38.5
NO 29.8
012 66.7/ 77.0
012+017 88.4/102.0
010+012 104.2/120.3
NONE
017 21.7/ 25.0
010 33.4/ 38.5
YES 29.8
012 66.7/ 77.0
012+017 88.4/102.0
010+012 104.2/120.3
NONE
016
013
NO 15.8
016
014+016
013+015
NONE
016
013
15.8
YES
016
014+016
013+015
HEAT POWER SUPPLY
FUSE OR
FLA MCA
HACR BKR
—/— 82.8/ 82.8 —
82.8/ 82.8 —
86.4/ 92.8 —
128.1/140.9 —
155.2/172.2 —
175.0/165.0 —
—/— 88.8/ 88.8 —
88.8/ 88.8 —
91.2/ 97.0 —
132.9/145.1 —
160.0/176.4 —
179.8/169.2 —
—/— 87.2/ 87.2 —
87.2/ 87.2 —
90.8/ 97.2 —
132.5/145.3 —
159.6/176.6 —
179.4/169.4 —
—/— 93.2/ 93.2 —
93.2/ 93.2 —
95.6/101.4 —
137.3/149.5 —
164.4/180.8 —
184.2/173.6 —
— 40.7 45.0
16.7 45.8 60.0
19.8 49.7 60.0
33.4 66.7 —
50.2 87.6 —
60.1 85.0 —
— 43.4 45.0
16.7 47.9 60.0
19.8 51.8 60.0
33.4 68.8 —
50.2 89.7 —
60.1 87.1 —
— 43.3 50.0
16.7 48.4 60.0
19.8 52.3 60.0
33.4 69.3 —
50.2 90.2 —
60.1 87.6 —
— 46.0 50.0
16.7 50.5 60.0
19.8 54.4 60.0
33.4 71.4 —
50.2 92.3 —
60.1 89.7 —
—/— 90.4/ 90.4 —
90.4/ 90.4 —
90.8/ 97.2 —
132.5/145.3 —
159.6/176.6 —
179.4/169.4 —
—/— 96.4/ 96.4 —
96.4/ 96.4 —
95.6/101.4 —
137.3/149.5 —
164.4/180.8 —
184.2/173.6 —
— 44.9 50.0
16.7 48.4 60.0
19.8 52.3 60.0
16.7 48.4 —
50.2 90.2 —
60.1 87.6 —
— 47.6 50.0
16.7 50.5 60.0
19.8 54.4 60.0
16.7 50.5 —
50.2 92.3 —
60.1 89.7 —
Example: Supply voltage is 460-3-60.
AB = 452 v
BC = 464 v
AC = 455 v
Average Voltage =
Determine maximum deviation from average voltage.
(AB) 457 – 452 = 5 v
(BC) 464 – 457 = 7 v
(AC) 457 – 455 = 2 v
Maximum deviation is 7 v.
Determine percent of voltage imbalance.
% Voltage Imbalance = 100 x
457
= 1.53%
This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.
IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact your
local electric utility company immediately.
26
SINGLE DISCONNECT SIZE*
POINT BOX
CRSINGLE
MOCP FLA
---A00
90/ 90 † 90/ 90
90/ 90 † 90/ 90
100/110 † 90/ 91
150/150 † 123/135
175/175 † 148/164
175/200 † 166/185
100/100 † 96/ 96
100/100 † 96/ 96
110/110 † 96/ 96
150/150 † 129/140
175/200 † 154/169
200/200 † 172/190
100/100 † 95/ 95
100/100 † 95/ 95
100/110 † 95/ 96
150/150 † 128/140
175/200 † 153/169
200/200 † 171/190
100/100 † 101/101
100/100 † 101/101
110/110 † 101/101
150/150 † 134/145
175/200 † 159/174
200/200 † 177/195
— — 44.0
— 011 44.0
— 011 47.0
80.0 014 62.0
100.0 016 81.0
110.0 016 93.0
— — 47.0
— 014 47.0
— 011 49.0
80.0 014 65.0
100.0 016 84.0
110.0 016 95.0
— — 47.0
— 014 47.0
— 011 50.0
80.0 014 65.0
100.0 016 84.0
110.0 016 96.0
— 0.0 50.0
— 014 50.0
— 011 52.0
90.0 014 68.0
100.0 016 87.0
110.0 016 98.0
100/100 † 98/ 98
100/100 † 98/ 98
100/110 † 98/ 98
150/150 † 128/140
175/200 † 153/169
200/200 † 171/190
100/100 † 104/104
100/100 † 104/104
110/110 † 104/104
150/150 † 134/145
175/200 † 159/174
200/200 † 177/195
— — 49.0
— 014 49.0
— 011 50.0
70.0 014 49.0
100.0 016 84.0
110.0 016 96.0
— — 51.0
— 014 51.0
— 011 52.0
70.0 014 51.0
100.0 016 87.0
110.0 016 98.0
452 + 464 + 455
3
1371
=
3
= 457
7
LRA
519/519
519/519
519/519
519/519
519/519
519/519
523/523
523/523
523/523
523/523
523/523
523/523
542/542
542/542
542/542
542/542
542/542
542/542
547/547
547/547
547/547
547/547
547/547
547/547
260.0
261.0
261.0
261.0
261.0
261.0
262.0
263.0
263.0
263.0
263.0
263.0
272.0
272.0
272.0
272.0
272.0
272.0
274.0
274.0
274.0
274.0
274.0
274.0
604/604
604/604
604/604
604/604
604/604
604/604
609/609
609/609
609/609
609/609
609/609
609/609
287.0
287.0
287.0
287.0
287.0
287.0
289.0
289.0
289.0
289.0
289.0
289.0